package day03;

import java.util.Scanner;

public class ifDemo {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		System.out.println("请输入商品金额：");
		double price = scan.nextInt();
		if (price >= 500) {
			price *= 0.8;
		}
		System.out.println("最终结算金额:" + price);
		
		double score = 500;
		if (score>=0 && score <= 100){
			System.out.println(score+"是合法成绩");
		}else {
			System.out.println(score+"不是合法成绩");
		}
	}
}
